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* [PATCH] Memory leak in block/cciss.c driver
@ 2003-09-21  4:02 Felipe W Damasio
  0 siblings, 0 replies; only message in thread
From: Felipe W Damasio @ 2003-09-21  4:02 UTC (permalink / raw)
  To: Linus Torvalds; +Cc: Cciss-discuss, linux-kernel

[-- Attachment #1: Type: text/plain, Size: 266 bytes --]

	Hi Linus,

	Patch against 2.6-test5 which removes a few memory leaks from the cciss 
block driver.

	Bug found by smatch checker.

	Please apply,

	Cheers.

Felipe
-- 
It's most certainly GNU/Linux, not Linux. Read more at
http://www.gnu.org/gnu/why-gnu-linux.html

[-- Attachment #2: cciss-leak.patch --]
[-- Type: text/plain, Size: 1071 bytes --]

--- linux-2.6.0-test5/drivers/block/cciss.c	Mon Sep  8 16:50:32 2003
+++ linux-2.6.0-test5-fwd/drivers/block/cciss.c	Sun Sep 21 00:46:33 2003
@@ -754,16 +754,24 @@
 			status = -ENOMEM;
 			goto cleanup1;
 		}
-		if (copy_from_user(ioc, (void *) arg, sizeof(*ioc)))
-			return -EFAULT;
+		if (copy_from_user(ioc, (void *) arg, sizeof(*ioc))) {
+			status = -EFAULT;
+			goto cleanup1;
+		}
 		if ((ioc->buf_size < 1) &&
-			(ioc->Request.Type.Direction != XFER_NONE))
-				return -EINVAL;
+			(ioc->Request.Type.Direction != XFER_NONE)) {
+				status = -EINVAL;
+				goto cleanup1;
+		}
 		/* Check kmalloc limits  using all SGs */
-		if (ioc->malloc_size > MAX_KMALLOC_SIZE)
-			return -EINVAL;
-		if (ioc->buf_size > ioc->malloc_size * MAXSGENTRIES)
-			return -EINVAL;
+		if (ioc->malloc_size > MAX_KMALLOC_SIZE) {
+			status = -EINVAL;
+			goto cleanup1;
+		}
+		if (ioc->buf_size > ioc->malloc_size * MAXSGENTRIES) {
+			status = -EINVAL;
+			goto cleanup1;
+		}
 		buff = (unsigned char **) kmalloc(MAXSGENTRIES * 
 				sizeof(char *), GFP_KERNEL);
 		if (!buff) {

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2003-09-21  4:02 [PATCH] Memory leak in block/cciss.c driver Felipe W Damasio

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